certain collocations and examples

 UK /ˈsɜː(r)t(ə)n/

Explore meanings in the Dictionary

having no doubts; definitely going to happen

Adverbs frequently used with certain
completely: absolutely, quiteI’m quite certain that’s what she said.not completely: fairly, not entirely, pretty informal, reasonablyBy matching this information with our records we were reasonably certain that Edward was born in 1844.almost: almost, virtuallyThe process is almost certain to take a couple of years.
Verbs frequently used with certain
appear, be, become, feel, seemScientists became certain that the drug was responsible for these birth defects.

Usage note

When you are sure that something is true, you can say that you know for certain that it is true.

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